HydroBASINS lev08 watershed · #2080392680
Bassin de Emscher
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 12 administrative regions : Bochum, Bottrop, Dortmund, Duisburg, Ennepe-Ruhr-Kreis +7
Sub-basin area
788,5km²
Upstream area
788,5km²
Discharge
7,4m³/s
Mean elev.
76m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
12 dept-equivalent regions (GADM L2)
- Dortmund176.5 km²22.3% of basin
- Recklinghausen174.4 km²22.0% of basin
- Essen94.5 km²11.9% of basin
- Gelsenkirchen81.1 km²10.2% of basin
- Bochum68.9 km²8.7% of basin
- Bottrop59.7 km²7.5% of basin
- Herne51.5 km²6.5% of basin
- Oberhausen42.7 km²5.4% of basin
4 moreFull L2 list
- Ennepe-Ruhr-Kreis17.3 km² · 2.2%
- Duisburg8.7 km² · 1.1%
- Mülheim an der Ruhr8.3 km² · 1.0%
- Unna7.8 km² · 1.0%
30 intersecting protected areas
Landscape Protection Area
6.09 km² overlap
Landscape Protection Area
5.90 km² overlap
Landscape Protection Area
4.40 km² overlap
LSG-Rentfort
IUCN VLandscape Protection Area
4.20 km² overlap
Landscape Protection Area
3.91 km² overlap
Landscape Protection Area
3.61 km² overlap
Landscape Protection Area
3.49 km² overlap
Landscape Protection Area
3.34 km² overlap
Landscape Protection Area
3.05 km² overlap
21 more protected areassorted by overlap area
LSG Mengede
IUCN VLandscape Protection Area
3.04 km² overlap
LSG-Grafenwald/Boyetal
IUCN VLandscape Protection Area
3.02 km² overlap
LSG-Westerholt - Herten
IUCN VLandscape Protection Area
2.83 km² overlap
Landscape Protection Area
2.83 km² overlap
Landscape Protection Area
2.79 km² overlap
Landscape Protection Area
2.75 km² overlap
LSG-Emscheraue
IUCN VLandscape Protection Area
2.72 km² overlap
Landscape Protection Area
2.62 km² overlap
Landscape Protection Area
2.51 km² overlap
Landscape Protection Area
2.44 km² overlap
LSG Nette
IUCN VLandscape Protection Area
2.39 km² overlap
NSG Koelnischer Wald
IUCN IVNature Reserve
2.26 km² overlap
LSG Dellwig - Westrich
IUCN VLandscape Protection Area
2.24 km² overlap
LSG-Becklem
IUCN VLandscape Protection Area
2.23 km² overlap
LSG-Hohe Heide
IUCN VLandscape Protection Area
2.18 km² overlap
LSG-Feldhausen/Overhagen
IUCN VLandscape Protection Area
2.04 km² overlap
Landscape Protection Area
2.03 km² overlap
LSG Deusen-Ellinghausen
IUCN VLandscape Protection Area
2.03 km² overlap
Landscape Protection Area
2.02 km² overlap
Landscape Protection Area
1.97 km² overlap
Nature Reserve
1.92 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 591 distinct species · 517 184 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Emscher : 30 espèces reliées par 101 interactions GloBI sur 5 types (connectance 13.6%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
9,7°C
Annual rain
826mm
Moisture idx (CMI)
0,12
Runoff
301mm/an
PET
728mm
AET
577mm
Mean slope
1,4°
Water table
115cm
Forest
9%
Crops
7%
Urban
98%
Protected
22%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)